bug#51968: Missing dependency for Xournal++

[Daniel Meißner]

Hi Ludo,

Ludovic Courtès writes:
> Daniel Meißner skribis:
>
>> there is a problem with the package xournalpp on Guix master.  To
>> reproduce run:
>>
>> $ guix shell --pure xournalpp -- xournalpp
>> [...]
> How should this be addressed?  Adding ‘gnome-icon-theme’ as a propagated
> input would be quite unusual, but maybe it’s become necessary?

In fact, I think it should be adwaita-icon-theme.  Anyways, I am not
familiar with how GTK loads its icons but maybe we could patch the
sources to look for the icon in the right places so that we can just add
it as an input?

Best
Daniel